Improvement in governor-stop-valves for steam-engines



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CHARLES A.. COND, OF INDIANAPOLIS, INDIANA.

Leners Parmi No. 90,427, dated Moy 25, 1869.

MROVEMENT IN GOVERNOR-STOP-VALVES FOR STEAM-ENGINES.

The Schedule referred to in these Letters Patent and maLnng part of the same.

. tomatic Cut0i` and Governor-Valve; and I do hereby declare that the following is a full, clearand exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of' this specication.`

This invention relates to an'improvement in valves for admitting and cutting off to steam-engines, more particularly designed for governor-valves for throttling the steam, -and for an automatic'stop-valve, to cut off the steam, incase of accident.

Thefinvention consists in a sliding sectional and open cylinder-valve, operating longitudinally in its chamber, in connection with suitable ports in a properly-constructed seat, or chamber, as. will be hereinafter more fully described.

In the accompanying plate of drawings- Figure lis a section of tbe valve and globe through the line :n x of iig. 2.

Figure 2 is a crosslsection of iig. 1 through the line y y.

Similar letters of reference indicate corresponding parts.

A is the globe, or shell which contains the Valve, and which may be directly 'connected with a governor for which I have applied forLetters Patent, or with other governors.

' B is the valve-seat, or cylindrical chamber, in which the valve works.

C is a steam-chamber around the valve-chamber.

D is the valve, which is hollow and open at both ends.

E is the valve-rod.

The steam is admitted to the chamber O, through the branch-opening F, and discharged to engine through the valve and opening G.

The valve D consists of a series ofi. rings, more or less in number, secured to two or more internal ribs, h, with ports or'spaces 'i between them, for admitting steam from the chamber O. The spaces, or ports in the valve are marked i.

j represents ports, through the cylindrical valveseat, which correspond, in position and number, with the spaces, or ports in the valve.

As the valve is moved longitudinally in its seat, it will be seen thatA the steam from the chamber C may be entirely cut off, by its movement in either direction, and that, being surrounded with steam, it is perfectly balanced, and works without pressure to re-. tard its motion.

The rings forming the ports of the valve-chamber,lv or seat are stayed by two or more ribs on their outer sides. l v

Vhen the Valve-rod is connected with the crossoff the governor-balls, the steam is throttled when the balls expand,` as the valve is then given a downward The4 combination and arrangement of the valve-seat i B, valve D, and steam-chamber C, with 'the ports or spaces i and j, 'formed by a sexies of rings, connected together by ribs, substantially as herein shown and described. y

OHAS. A. CONDE.

Witnesses:

ALFRED T. SLNKEB, J. G. LIGHTFORD. 

